Elements and Compounds Chemistry

The basic unit of matter is

• a mixture
• a substance
• an atom
• a compound

A substance that contains only one type of atom is a(n)

• compound
• element
• heterogeneous mixture
• homogeneous mixture

The smallest unit of an element that still has the properties of that element is?

• a substance
• a mixture
• a compound
• an atom

Which of these is an example of a molecule?

• a small nugget of pure gold
• the smallest grain of salt in a salt shaker
•  a small drop of sugar water
• two oxygen atoms joined to a carbon atom

Tags

NGSS.MS-PS1-1

Which of these is not an example of a molecule?

• CH4
• C
• C6H12O6
• H2O

Tags

NGSS.MS-PS1-1

Which of these is a mixture?

• Uncooked chocolate chips and cookie dough blended together with a spoon.
• Distilled water
• A nugget of gold
• A molecule of Oxygen

The smallest unit of a compound that still has the properties of that compound is?

• an atom
• a molecule
• a mixture
• a substance

Tags

NGSS.MS-PS1-1

Two or more elements chemically combined:

• an atom
• a compound
• a mixture
• a pure substance

Tags

NGSS.MS-PS1-5

Which of the following elements has an atomic symbol of Cu?

• Cuppernium
• Copper
• Carbon
• Radon

This picture represents which of the following?

• element
• compound
• mixture

Tags

NGSS.MS-PS1-1